package xyz.csmcool.imserver.config;

import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang3.StringUtils;
import org.springframework.stereotype.Component;
import org.springframework.web.socket.CloseStatus;
import org.springframework.web.socket.TextMessage;
import org.springframework.web.socket.WebSocketSession;
import org.springframework.web.socket.handler.TextWebSocketHandler;

import java.time.LocalDateTime;


/**
 * @author 什锦
 * @Package xyz.csmcool.imchat.config
 * @since 2022/8/24 14:11
 */
@Component
@Slf4j
public class PrivateChatHandler extends TextWebSocketHandler {


    /**
     * socket 建立成功事件
     *
     * @param session
     * @throws Exception
     */
    @Override
    public void afterConnectionEstablished(WebSocketSession session) throws Exception {
        Object uid = session.getAttributes().get("uid");
        if (uid != null) {
            // 用户连接成功，放入在线用户缓存
            WsSessionManager.add(uid.toString(), session);
        } else {
            throw new RuntimeException("用户登录已经失效!");
        }
    }

    /**
     * 接收消息事件
     *
     * @param session
     * @param message
     * @throws Exception
     */
    @Override
    protected void handleTextMessage(WebSocketSession session, TextMessage message) throws Exception {
        // 获得客户端传来的消息
        String payload = message.getPayload();
        Object uid = session.getAttributes().get("uid");
        System.out.println("server 接收到 " + uid + " 发送的 " + payload);
        session.sendMessage(new TextMessage("server 发送给 " + uid + " 消息 " + payload + " " + LocalDateTime.now().toString()));
    }

    /**
     * socket 断开连接时
     *
     * @param session
     * @param status
     * @throws Exception
     */
    @Override
    public void afterConnectionClosed(WebSocketSession session, CloseStatus status) throws Exception {
        Object uid = session.getAttributes().get("uid");
        if (uid != null) {
            // 用户退出，移除缓存
            WsSessionManager.remove(uid.toString());
        }
    }

    public static void onMessage(String message, Integer uid,Integer sid) {
        if (StringUtils.isNotBlank(message)) {
            try {
                WebSocketSession webSocketSession2 = WsSessionManager.get(sid.toString());
                webSocketSession2.sendMessage(new TextMessage(message));
            } catch (Exception e) {
                System.out.println("用户不在线");
            }

            try {
                WebSocketSession webSocketSession1 = WsSessionManager.get(uid.toString());
                webSocketSession1.sendMessage(new TextMessage(message));
            } catch (Exception e) {
                System.out.println("用户不在线");
            }
        }
    }
}
